Difference between revisions of "Virtual Hard Disk (VHD)"

From Forensics Wiki
Jump to: navigation, search
(Windows integration)
(See Also)
(One intermediate revision by one user not shown)
Line 7: Line 7:
 
* Microsoft Virtual Server
 
* Microsoft Virtual Server
 
* Microsoft Hyper-V Server
 
* Microsoft Hyper-V Server
 +
 +
VHD support is also integrated into [[Windows]] (at least in Windows 7) where "Disk Management" (part of "Computer Management") supports attaching and creating Fixed and Dynamic VHD image files.
  
 
== Image types ==
 
== Image types ==
Line 23: Line 25:
 
== See Also ==
 
== See Also ==
 
* [[Disk Images]]
 
* [[Disk Images]]
 +
* [[Windows]]
  
 
== External Links ==
 
== External Links ==

Revision as of 23:40, 19 September 2012

Information icon.png

Please help to improve this article by expanding it.
Further information might be found on the discussion page.

The Virtual Hard Disk (VHD) commonly uses the .vhd extension.

This format is used to store virtual disk images by:

  • Microsoft Virtual PC
  • Microsoft Virtual Server
  • Microsoft Hyper-V Server

VHD support is also integrated into Windows (at least in Windows 7) where "Disk Management" (part of "Computer Management") supports attaching and creating Fixed and Dynamic VHD image files.

Contents

Image types

There are multiple types of Virtual Hard Disk (VHD) images:

  • Fixed-size hard disk image; the image contains all data
  • Dynamic-size (or sparse) hard disk image; the image contains used data only
  • Differential (or differencing, or delta) hard disk image; the image contains changes relative to its parent image

Snapshots

Hyper-V has functionality to create snapshots.

These snapshots are stored in Snapshot Differencing Disk (AVHD) files which commonly uses the .avhd extension.

The snapshot can be interdependent on one-another, because they are differential images of the previous snapshot.

See Also

External Links

Snapshots